Network Engineer – Level 2 (L2)

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We are seeking a skilled and motivated Level 2 Network Engineer to join our infrastructure team based in London. The ideal candidate will have hands-on experience in managing enterprise network infrastructure and must hold active Security Clearance (SC) or preferably DV Clearance due to the sensitive nature of the work. You will play a critical role in maintaining network performance, resolving issues, and supporting project implementation in a secure environment.

Key Responsibilities
• Provide Level 2 support for day-to-day operations of network infrastructure (LAN, WAN, VPN, Firewalls, etc.)
• Respond to and resolve incidents, service requests, and escalations within SLA timelines.
• Configure, manage, and monitor network devices (Cisco, Juniper, Aruba, etc.)
• Assist with implementation of new network solutions and improvements.
• Collaborate with Level 3 engineers on complex troubleshooting and upgrades.
• Monitor network performance using tools (e.g., SolarWinds, Nagios, Wireshark).
• Apply change control procedures and ensure compliance with security policies.
• Maintain network documentation, asset records, and diagrams.
• Participate in on-call rotation and after-hours support when required.
• Ensure adherence to cyber security best practices in all network activities.

Required Skills & Experience
• Active SC or DV Clearance (Mandatory)
• 5 years of experience in network operations or support roles.
• Proficiency in configuring and troubleshooting Cisco routers, switches, and firewalls.
• Strong understanding of TCP/IP, routing protocols (BGP, OSPF, EIGRP), VLANs, and subnetting.
• Experience with enterprise-grade firewalls (Cisco ASA, Palo Alto, Fortinet).
• Familiarity with VPN technologies (IPSec, SSL VPN).
• Working knowledge of network monitoring and diagnostic tools.
• Excellent problem-solving and communication skills.

Desirable (Preferred) Skills
• Cisco Certified Network Associate (CCNA) or higher (e.g., CCNP)
• Experience with SD-WAN, NAC solutions (Cisco ISE), and wireless technologies.
• Exposure to ITIL processes and working in secure government or defence environments.
• Experience with scripting for automation (Python, PowerShell).

Skills: ospf,ipsec,palo alto,cisco asa,tcp/ip,network performance,infrastructure,eigrp,enterprise,dv,routing protocols,network monitoring,communication,juniper,network infrastructure,fortinet,diagnostic tools,lan,aruba,cisco,bgp,problem-solving,subnetting,ssl vpn,vpn,firewalls,security,wan,vlans,security clearance
Seniority level
• Seniority level
Mid-Senior level
Employment type
• Employment type
Contract
Job function
• Job function
Information Technology
• Industries
Technology, Information and Internet

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Salary: GBP 43200 - 72000 per year

Experience: 3 years required